On ARM-based motherboards (ALTRA, AMPONE series), when the system is running some specific OS such as RHEL 9.5, executing the “Orderly Shutdown” or “Orderly Reboot” function from WebUI may cause the system to enter and remain on a black screen.
Step to resolve the issue:
1. Perform an AC power cycle, then boot into the OS
2. Open a terminal and execute the following command
gsettings set org.gnome.settings-daemon.plugins.power power-button-action 'interactive'
3. Try the functions from the WebUI again to check whether the issue has been resolved.